DETERMINATION OF HEAVY METALS ON THE EARTH'S SURFACE IN SEVERAL INDUSTRIAL REGIONS IN NORTH MACEDONIA BY THE AAS METHOD

DEHARI, Dije and MAXHUNI, Albert and JONUZI, Emir and IZAIRI, Neset and ABDULI, Shemsedin and DEHARI, Shefket (2022) DETERMINATION OF HEAVY METALS ON THE EARTH'S SURFACE IN SEVERAL INDUSTRIAL REGIONS IN NORTH MACEDONIA BY THE AAS METHOD. Journal of Natural Sciences and Mathematics of UT, 7 (13-14). pp. 269-277. ISSN 2671-3039

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Abstract

Heavy metals are potential poisons to human life and the environment. Their toxicity depends on their chemical form in the soil. Heavy metals have received special attention around the world as a result of their toxic effects even at very low concentrations. Our study aimed to determine the concentration of Pb, Cr, Cd, Ni, Cu, and Fe metals on the earth's surface by the atomic absorption spectroscopy method in the industrial zone of Jegunovce, Teteks and Osllomej, Republic of North Macedonia. So three locations were analyzed: Location 1 (Jugohrom) in this location 4 points were analyzed and were marked with numbers from 1-4, Location 2 (Teteks) in this location were also analyzed 4 points and were marked with numbers from 5- 8 and Location 3 (Oslomej) in this location are analyzed 5 points and are marked with numbers from 9-13. In location number 1 the concentration of heavy metals that turned out to be above the maximum allowed amount are chromium and cadmium: The amount of Cr in point 1 is (6 mg / kg), point 2 (11.56 mg / kg), point 3 (40.1 mg / kg) and point 4 (10.53 mg / kg) and the amount allowed according to WHO of chromium in the soil is from 0.01-0.1 mg / kg. The amount of Cd that has exceeded the allowed level was in point 2 (3.19 mg/kg) and point 3 (3.88 mg/kg) and according to EU directives, the amount of cadmium allowed in the ground varies from 1 to 3 mg/kg. In location number 2 the concentration of heavy metals that turned out to be above the maximum allowed amount is Lead, Nickel, Chromium, and Cadmium. The amount of Pb that exceeded the allowed level was in point 8 (381.6mg/kg) while the allowable value according to EU directives is from 50-300 mg/kg. The amount of Ni above the allowed level has reached point 5 (383.1 mg/kg). Chromium has risen above the level at all points of this location, at point 5 (42.37 mg / kg), at point 6 (44.15 mg / kg), at point 7 (56.5 mg / kg) and at point 8 (24.72 mg / kg). Cadmium above the allowable level was detected at point 7 (3.75 mg/kg) and point 8 (3.36 mg/kg).

Item Type:	Article
Uncontrolled Keywords:	soil pollution, heavy metals, Jugohrom, Teteks, Osllomej, atomic absorption spectroscopy.
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Unnamed user with email zshi@unite.edu.mk
Date Deposited:	31 Oct 2022 15:05
Last Modified:	31 Oct 2022 15:05
URI:	http://eprints.unite.edu.mk/id/eprint/1087

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